[Perf] Alpine/x64: 3 Regressions on 6/30/2023 11:17:52 PM

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	alpine 3.15
Queue	TigerAlpine
Baseline	299a8c9c178c38c6e7ca62b1bcce8f6e0d895ebe
Compare	e80ef8638b6d3f42add1bb046e032b2eff417473
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Guid

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Parse - Duration of single invocation	18.72 ns	22.15 ns	1.18	0.04	False
ctor_str - Duration of single invocation	18.71 ns	22.22 ns	1.19	0.05	False
ParseExactD - Duration of single invocation	23.55 ns	26.97 ns	1.15	0.02	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Guid*'

Details

Payloads

Baseline
Compare

System.Tests.Perf_Guid.Parse

Histogram

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 22.145428740522348 > 19.653884430111198.
IsChangePoint: Marked as a change because one of 4/1/2023 1:31:30 PM, 4/12/2023 4:44:56 PM, 6/9/2023 2:21:24 AM, 6/30/2023 4:39:46 PM, 7/3/2023 9:53:34 PM falls between 6/24/2023 6:56:43 PM and 7/3/2023 9:53:34 PM.
IsRegressionStdDev: Marked as regression because -55.722143793123344 (T) = (0 -22.164930456052645) / Math.Sqrt((0.036272481740947556 / (36)) + (0.02011578782147388 / (8))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (8) - 2, .025) and -0.17535957494517848 = (18.857999652647973 - 22.164930456052645) / 18.857999652647973 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

System.Tests.Perf_Guid.ctor_str

Histogram

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 22.216345100354847 > 19.653655746496913.
IsChangePoint: Marked as a change because one of 4/1/2023 1:31:30 PM, 4/12/2023 4:44:56 PM, 6/9/2023 2:21:24 AM, 6/30/2023 4:39:46 PM, 7/3/2023 9:53:34 PM falls between 6/24/2023 6:56:43 PM and 7/3/2023 9:53:34 PM.
IsRegressionStdDev: Marked as regression because -26.307197162064472 (T) = (0 -22.026674929615478) / Math.Sqrt((0.043871597172555635 / (36)) + (0.11055157134939045 / (8))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (8) - 2, .025) and -0.17158935687720978 = (18.80067858274682 - 22.026674929615478) / 18.80067858274682 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

System.Tests.Perf_Guid.ParseExactD

Histogram

Description of detection logic

IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 26.96689713200847 > 24.78688768486695.
IsChangePoint: Marked as a change because one of 6/9/2023 2:21:24 AM, 6/30/2023 4:39:46 PM, 7/3/2023 9:53:34 PM falls between 6/24/2023 6:56:43 PM and 7/3/2023 9:53:34 PM.
IsRegressionStdDev: Marked as regression because -20.913144257526703 (T) = (0 -26.603232766363647) / Math.Sqrt((0.03442135443706985 / (36)) + (0.16343835107425106 / (8))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (36) + (8) - 2, .025) and -0.12989323256558002 = (23.54490849189113 - 26.603232766363647) / 23.54490849189113 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

[xtqqczze]

dotnet/runtime#88267